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DTC Diagnosis Procedure
1.CHECK DTC PRIORITY
If DTC P050A is displayed with other DTC, first perform the trouble diagnosis for other DTC.
Is applicable DTC detected?
Perform diagnosis of applicable. Refer to DTC Index.
.
 
2.PERFORM IDLE AIR VOLUME LEARNING
Refer to Work Procedure.
Is Idle Air Volume Learning carried out successfully?
.
Follow the instruction of Idle Air Volume Learning.
 
3.CHECK Intake system
Check for the cause of intake air volume lacking. Refer to the following.
  • Crushed intake air passage
  • Intake air passage clogging
  • Clogging of throttle body
Is the inspection result normal?
.
Repair or replace malfunctioning part
 
4.CHECK FUEL INJECTION SYSTEM FUNCTION
Perform DTC Confirmation Procedure for DTC P0171. Refer to DTC Description.
Is the inspection result normal?
.
Refer to DTC Diagnosis Procedure for DTC P0171.
 
5.PERFORM DTC CONFIRMATION PROCEDURE
  1. Turn ignition switch ON.
  2. Erase DTC.
  3. Perform DTC Confirmation Procedure.
    Refer to DTC Description.
Is the 1st trip DTC P050A, P050B or P050E displayed again?
Replace ECM. Refer to Removal & InstallationECM : Removal & Installation.
INSPECTION END